提交 cb10799c 编写于 作者: P Paulo Zanoni 提交者: Daniel Vetter

drm/i915: turn on the power well before suspending

Our suspend code touches a lot of registers all over the place, so we
need to enable the power well before suspending.
Signed-off-by: NPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
[danvet: Fixup compilation by stealing the header decl from the
dynamic power wells patch.]
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
上级 cc464b2a
......@@ -470,6 +470,8 @@ static int i915_drm_freeze(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
intel_set_power_well(dev, true);
drm_kms_helper_poll_disable(dev);
pci_save_state(dev->pdev);
......
......@@ -668,6 +668,7 @@ extern void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
extern void intel_gpu_ips_teardown(void);
extern void intel_init_power_well(struct drm_device *dev);
extern void intel_set_power_well(struct drm_device *dev, bool enable);
extern void intel_enable_gt_powersave(struct drm_device *dev);
extern void intel_disable_gt_powersave(struct drm_device *dev);
extern void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv);
......
......@@ -4043,7 +4043,7 @@ void intel_init_clock_gating(struct drm_device *dev)
dev_priv->display.init_clock_gating(dev);
}
static void intel_set_power_well(struct drm_device *dev, bool enable)
void intel_set_power_well(struct drm_device *dev, bool enable)
{
struct drm_i915_private *dev_priv = dev->dev_private;
bool is_enabled, enable_requested;
......
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